<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <title>04_字体粗细</title>
    <style>
        .atguigu1 {
             font:bold normal 100px "HanziPen SC",sans-serif ;
        }
    </style>

</head>

<body>
    <div class="atguigu1">尚硅谷2</div>
</body>

</html>